Open-File Report 2013–1024-I
AbstractAeromagnetic data help provide the underpinnings of a hydrogeologic framework for Fort Irwin by locating inferred structural features or grain that influence groundwater flow. Magnetization boundaries defined by horizontal-gradient analyses coincide locally with Cenozoic faults and can be used to extend these faults beneath cover. These boundaries also highlight the structural grain within the crystalline rocks and may serve as a proxy for fracturing, an important source of permeability within the generally impermeable basement rocks, thus mapping potential groundwater pathways through and along the mountain ranges in the study area. |
First posted November 26, 2014 This report is only available on-line Back to Geology and Geophysics Applied to Groundwater Hydrology at Fort Irwin, California For additional information, contact: Part or all of this report is presented in Portable Document Format (PDF). For best results viewing and printing PDF documents, it is recommended that you download the documents to your computer and open them with Adobe Reader. PDF documents opened from your browser may not display or print as intended. Download the latest version of Adobe Reader, free of charge. More information about viewing, downloading, and printing report files can be found here. |
Langenheim, V.E., and Jachens, R.C., 2014, Aeromagnetic data, processing, and maps of Fort Irwin and vicinity, California, chap. I of Buesch, D.C., ed., Geology and geophysics applied to groundwater hydrology at Fort Irwin, California: U.S. Geological Survey Open-File Report 2013–1024, 18 p. http://dx.doi.org/10.3133/ofr20131024I.
ISSN 2331-1258 (online)
Abstract
Introduction
Aeromagnetic Surveys
Aeromagnetic Map Processing and Anomaly Enhancement
Magnetic Susceptibility Measurements and Anomaly Sources
Magnetic Anomalies
Conclusions
Acknowledgments
References
Figures (8)
Tables (1)